import java.util.Scanner;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: Gao zhao xu
 * Date: 2023-10-23
 * Time: 9:12
 */
public class test1 {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        while (sc.hasNext()) {
            int apple = sc.nextInt();
            int panel = sc.nextInt();
            System.out.println(apple +" " +  panel);
        }
    }
}
